Eat your spinach. Most kids probably heard that a million times when they were growing up. Well, new research suggests that it’s payback time. Rather than parents telling children they need to eat their spinach, children should be saying this same thing to their parents and grandparents. Why? According to the aforementioned research, spinach contains a nutrient called lutein that can not only help prevent, but can actually reverse age-related vision loss, a discovery that could have a dramatic impact on the lives of millions of Americans.